/** * \file * * \brief Port * * Copyright (C) 2014 Atmel Corporation. All rights reserved. * * \asf_license_start * * \page License * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. The name of Atmel may not be used to endorse or promote products derived * from this software without specific prior written permission. * * 4. This software may only be redistributed and used in connection with an * Atmel microcontroller product. * * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * \asf_license_stop */ #ifndef _HAL_GPIO_INCLUDED_ #define _HAL_GPIO_INCLUDED_ #include #include #ifdef __cplusplus extern "C" { #endif /** * \brief Set gpio pull mode * * Set pin pull mode, non existing pull modes throws an fatal assert * * \param[in] pin The pin number for device * \param[in] pull_mode GPIO_PULL_DOWN = Pull pin high with internal * resistor * GPIO_PULL_UP = Pull pin low with internal resistor * GPIO_PULL_OFF = Disable pin pull mode */ static inline void gpio_set_pin_pull_mode(const uint8_t pin, const enum gpio_pull_mode pull_mode) { _gpio_set_pin_pull_mode((enum gpio_port)GPIO_PORT(pin), pin & 0x1F, pull_mode); } /** * \brief Set pin function * * Select which function a pin will be used for * * \param[in] pin The pin number for device * \param[in] function The pin function is given by a 32-bit wide bitfield * found in the header files for the device * */ static inline void gpio_set_pin_function(const uint32_t pin, uint32_t function) { _gpio_set_pin_function(pin, function); } /** * \brief Set port data direction * * Select if the pin data direction is input, output or disabled. * If disabled state is not possible, this function throws an assert. * * \param[in] port Ports are grouped into groups of maximum 32 pins, * GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc * \param[in] mask Bit mask where 1 means apply direction setting to the * corresponding pin * \param[in] direction GPIO_DIRECTION_IN = Data direction in * GPIO_DIRECTION_OUT = Data direction out * GPIO_DIRECTION_OFF = Disables the pin * (low power state) */ static inline void gpio_set_port_direction(const enum gpio_port port, const uint32_t mask, const enum gpio_direction direction) { _gpio_set_direction(port, mask, direction); } /** * \brief Set gpio data direction * * Select if the pin data direction is input, output or disabled. * If disabled state is not possible, this function throws an assert. * * \param[in] pin The pin number for device * \param[in] direction GPIO_DIRECTION_IN = Data direction in * GPIO_DIRECTION_OUT = Data direction out * GPIO_DIRECTION_OFF = Disables the pin * (low power state) */ static inline void gpio_set_pin_direction(const uint8_t pin, const enum gpio_direction direction) { _gpio_set_direction((enum gpio_port)GPIO_PORT(pin), 1U << GPIO_PIN(pin), direction); } /** * \brief Set port level * * Sets output level on the pins defined by the bit mask * * \param[in] port Ports are grouped into groups of maximum 32 pins, * GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc * \param[in] mask Bit mask where 1 means apply port level to the corresponding * pin * \param[in] level true = Pin levels set to "high" state * false = Pin levels set to "low" state */ static inline void gpio_set_port_level(const enum gpio_port port, const uint32_t mask, const bool level) { _gpio_set_level(port, mask, level); } /** * \brief Set gpio level * * Sets output level on a pin * * \param[in] pin The pin number for device * \param[in] level true = Pin level set to "high" state * false = Pin level set to "low" state */ static inline void gpio_set_pin_level(const uint8_t pin, const bool level) { _gpio_set_level((enum gpio_port)GPIO_PORT(pin), 1U << GPIO_PIN(pin), level); } /** * \brief Toggle out level on pins * * Toggle the pin levels on pins defined by bit mask * * \param[in] port Ports are grouped into groups of maximum 32 pins, * GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc * \param[in] mask Bit mask where 1 means toggle pin level to the corresponding * pin */ static inline void gpio_toggle_port_level(const enum gpio_port port, const uint32_t mask) { _gpio_toggle_level(port, mask); } /** * \brief Toggle output level on pin * * Toggle the pin levels on pins defined by bit mask * * \param[in] pin The pin number for device */ static inline void gpio_toggle_pin_level(const uint8_t pin) { _gpio_toggle_level((enum gpio_port)GPIO_PORT(pin), 1U << GPIO_PIN(pin)); } /** * \brief Get input level on pins * * Read the input level on pins connected to a port * * \param[in] port Ports are grouped into groups of maximum 32 pins, * GPIO_PORTA = group 0, GPIO_PORTB = group 1, etc */ static inline uint32_t gpio_get_port_level(const enum gpio_port port) { return _gpio_get_level(port); } /** * \brief Get level on pin * * Reads the level on pins connected to a port * * \param[in] pin The pin number for device */ static inline bool gpio_get_pin_level(const uint8_t pin) { return (bool)(_gpio_get_level((enum gpio_port)GPIO_PORT(pin)) & (0x01U << GPIO_PIN(pin))); } /** * \brief Get current driver version */ uint32_t gpio_get_version(void); #ifdef __cplusplus } #endif #endif